No, not every pet will adjust well in a new situation. My 2 cats now, one would adjust, he is very friendly and easy going but my little female siamese is a mamas girl, very bonded with me, fearful of strangers, quirky, it would be really hard on her to adjust to a new situation. She wants to be with me constantly, we are deeply bonded.

I take my words back..Young parrot can outlive me if it lives for 40–50 odd years which is possible.. Was just checking max age limits for different species and found below for Whales -
“Although this idea was unproven for a time, recent research has indicated that bowhead whales recently killed still had harpoons in their bodies from about 1890, which, along with analysis of amino acids, has indicated a maximum life span, stated as “the 211 year-old bowhead could have been from 177 to 245 years old”.
Amazing isn’t it?